I’m not sure if it’s a coincidence, but I raised a case with the ICO in the UK, and today they got back to me asking for all my communication with Reddit. Also today - after a month of silence - Reddit also emailed me with this
If you’re in the UK and had been affected by posts being restored, I’d recommend contacting the ICO. It takes less than 5 minutes
Regarding PowerDeleteSuite it’s because it hasn’t been updated in multiple years and since then (like a year after the last PDS update) Reddit added a cooldown for editing comments. I assume the same exists for deleting.
So when you run the script, occasionally you hit the 5-sec cooldown but the script just keeps moving, thinking everything is okay.
It’s not really that. Reddit just doesn’t expose more comments through its API, so there’s nothing PowerDeleteSuite can do. You have to use other tools to get at those shadow comments. The most reliable way is to do a GDPR data request, and then feed the results through the free shreddit tool: https://github.com/andrewbanchich/shreddit
I just used the tool last week and it deleted 3500 comments successfully. A couple of times it encountered errors, but it stopped and asked what I wanted to do before proceeding.